a mini rocket launcher - shoots allot of small, fast rockets that slightly home to targets (they make the new tiny explosions)... like Iron Man had in Avengers haha or some other weapon using only the small explosions, a different type of explosive weapons.

shoots sound wave that gradually expands and disperse when it hits a wall/enemy.you can hold LMB to charge it and it'll fire even bigger sound wave.enemies that are hit will be knocked back.no charge - 2 damage, fully charge - 20 damage or more

* Geomagnet:Rips out 1 tile of closest to cursor wall and launches it at you at a nice speed damaging everything standing in the path, works like crossbow, but does more damage and can hurt you too.Consumes Energy.

A melee weapon that leaves a trail of flames behind when you swing it. It could be some sort of improvised weapon, like a blow torch attached to a metal pipe or something.

Some sort of grenade that spits out other projectiles when it explodes. I was thinking it could be a frag grenade that fires shotgun pellets out of the explosion, but then I realized that's pretty much what the flak cannon does. So, instead of shotgun pellets, how about the explosion releases:-Miniature grenades which use small explosionsor-lightning rails